The Great Divide: Families and Politics

It's a rare thing in most families, I think, for everyone to see eye-to-eye on politics. But in political families, outsiders rarely see that dissent. It's much more common to see political spouses or children publicly agree with the choices of their father, mother, husband, or wife—so much so that when someone like Jenna Bush says to Larry King that she doesn't yet know who she is supporting and is looking at all the candidates, it makes national headlines. (It may be something of a Bush family tradition—her grandmother, Barbara Bushmade tremendous waves by announcing that she was pro-choice, although she did so seven years after he husband stopped being President.)

People have taken notice that Elizabeth Edwards didn't join her husband in endorsing Barack Obama yesterday. Is it connected to her statements in April that she preferred Hillary Clinton's health care plan? Was she just busy doing something else? Or does this just neatly appease those Edwards followers who wish he were supporting Hillary?

Do you expect political spouses to agree with their politicians? And why do you think Elizabeth Edwards is keeping quiet?